If the Moon had an iron core, what would happen to lunar tides?
a) Nothing because the tide is caused by the Moon's orbital motion
b) The barycenter would change and the tides would become larger because the Moon is more massive
c) The tides would become smaller because the Moon would be smaller
d) The tides would be more frequent because the Moon would speed up
e) The tides would be less frequent because the Moon would slow down
Question 2
Why is it that a winter may be colder for one season if Earth is said to be experiencing global warming?
a) this is a false statement; winters would not be colder under the influence of global warming
b) Earth is not, in fact, experiencing global warming
c) increased variation in temperature extremes is expected with global warming, so overall climate can still be warming in the long term even if temperatures drop for one season
d) none of the above
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